摘要
钢筋锈蚀会影响荷载作用下钢筋混凝土构件的变形。目前,因钢筋锈蚀导致的钢筋与混凝土之间的粘结退化(特别是局部粘结退化)对构件变形的影响问题尚未得到有效解决。本文以简支梁为例,揭示了局部粘结退化对钢筋混凝土梁变形的影响机制,建立了受拉纵筋局部粘结退化后钢筋混凝土梁的变形计算模型,并对比已有实验数据,验证了模型的合理性和准确性。
The reinforcement corrosion would affect the deflection of RC members.It is necessary to establish a computational model to estimate the deflection of RC members with localized deterioration of bond strength.In the present paper,simply supported RC beams are introduced to elucidate the influence of localized bond deterioration on RC beam＇s deflection and a simplified computational model is also proposed.The calculated result is compared with experimental result and the comparison shows the satisfactory.
出处
《四川建筑科学研究》
2012年第2期108-112,119,共6页
Sichuan Building Science
基金
国家自然科学基金资助项目(50678101)
关键词
钢筋混凝土梁
钢筋锈蚀
局部粘结退化
变形
计算模型
RC beam
reinforcement corrosion
localized deterioration of bond strength
deflection
computational model
